Each year St. Raphael's School teachers take a survey about how technology is used in the classroom and the direction that professional development should take place. I use surveymonkey.com which is a free service with limits. I have never ran into issues with the limits which include: only 10 questions per survey and no more than 100 responses. I am inviting you to give comments or feedback about the survey- also feel free to take the survey to get the feel for it.
SRS Professional Development Survey
Disclaimer: This is the survey that was used for 2006-2007, I have to add additional tools that we have picked up.